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  1. #21

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    Ok that’s great , thanks for the info .
    Will have to get measuring up now !

  2. #22

    Join Date
    Oct 2018
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    245

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    Quote Originally Posted by dowood1 View Post
    I also seem to be considering a single carb conversion as I have already bought an SU carburettor to fit , in the near future whenever that may be !
    The SU is a great carburetor but getting the right sized jets and needles can be a bear depending on the model SU you have. This may be a good resource: https://sucarb.co.uk/technical-carburetters

    I usually see the side draft single carb conversions but I'm looking to do a single down draft on my 650 using one of the original CVs and rejetting it to use a pod filter tucked away under the tank. That should clean up the right side of the bike quite a bit. I'm also welding up a final 2-1 exhaust for it... the quick and ugly protoype I made is hooked to an Akrapovic can (model C in the link) and the motor sounds like an SV650 with an Akro exhaust... IMO so much nicer than the usual 2-2 cruiser or drag pipes.

    The XVS650 is such an awesome bike... stone reliable, comfortable for all day cruising and fires up in less than a second even when the temps get down to 0F.

  3. #23

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    Interesting post Skjoll , never considered a single down draft , great idea
    My main plan is to make my bike simpler, lighter and easier to work on .
    Would be interested to hear how you get on with the single downdraught idea .
    Have a two into one on my bike too , using an old HD silencer , they seem to sound better on a 2 into 1 .
    Thanks for the reading on the SU’s should keep occupied for a while
    I’m 6’5” so getting the air filter out the way is good for me . Was considering a forward facing single SU .
    But your path is a good option too.
    Someting to think on !

  4. #24

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    ‘‘Twas mot time again on thurs . But it passed with no problems .
    Now it’s the cars mot time next week , hey ho !

  5. #25

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    Got a piece of suitable billet to replace the rear shock, just trying to work out how to drill the holes square with only a battery hand drill

  6. #26

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    Have got a h4 1 1/2 “ SU carburettor for the xvs650 as I had read a 40mm carb was the best bet , for a single carb conversion
    But have now read that it could be a 40 mm outside dia spigot and should be a 30mm carb which would be the h2
    Have I got the right carb size please.
    My confusion comes from looking at a website called vtc motors ( sorry cannot do a link st the mo )
    Who at the mo seem to list two single carb manifolds . With to my mind two confusing size descriptions for each .
    I have asked them for clarification ! . But has any one any more information
    Last edited by dowood1; 06-01-2019 at 6:08 AM.

  7. #27

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    Very helpful company and quick responses ( vtc motors ) good prices for the manifolds to .
    Looks like I can use the h4 carb as it is a 38mm ID and the rubber mounting pipe on the manifold takes 40 to 43 mm (with jetting and setting up of course) , and making or getting an adaptor made to mount it on the manifold which has a 38mm ID
    Last edited by dowood1; 06-01-2019 at 6:53 AM.

  8. #28

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    Managed to get a clearance pillar drill from a local , builders merchants . For 30 not exactly great but it did the job !

    Oh yeah car failed the test , so gonna scrap it, not replace it and concentrate on the bike
    Last edited by dowood1; 06-02-2019 at 9:38 AM.

  9. #29

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    Putting a strut in the rear made the hard seat difficult to use as the 2 seat springs were only for decoration and had a bolt thru the middle of them .
    Redesigned the mounts to use the springs , but they were rubbish & bottomed out while stationary . Have upgraded them with some better quality 3 chrome ones which are much better . Now I just want to get rid of the rubbish standard frame bridge theyre mounted on . Have got a bit of 30mm tubing to make a cross rail about 3-4 further back, which will line up with the springs better & also be appx 2 lower and look and feel a lot better and can also act as a mounting point for the rear mudguard tidying things up a bit more
    Last edited by dowood1; 06-07-2019 at 2:27 PM.

  10. #30
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    Join Date
    May 2018
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    877

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    Quote Originally Posted by dowood1 View Post
    Putting a strut in the rear made the hard seat difficult to use as the 2” seat springs were only for decoration and had a bolt thru the middle of them .
    Redesigned the mounts to use the springs , but they were rubbish & bottomed out while stationary . Have upgraded them with some better quality 3” chrome ones which are much better . Now I just want to get rid of the rubbish standard frame bridge they’re mounted on . Have got a bit of 30mm tubing to make a cross rail about 3-4” further back, which will line up with the springs better & also be appx 2” lower and look and feel a lot better and can also act as a mounting point for the rear mudguard tidying things up a bit more
    The behive springs work much better than the weak cylindrical springs.

  11. #31

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    Ok thanks for that luky will , will keep that in mind ,
    Looking at e bay I think the original ones were cheap ones from China , they came with the 2nd hand seat I bought . From that very site .

  12. #32

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    Decided as I’ll need a few welding jobs done , to get myself an 160 amp inverter arc welder . I know it’s not everybody’s choice , but cost and size were priorities , and I’ve a few 2nd hand older welders , but they are just that old !
    I know a good arc weld is as strong as any other type ( but not as pretty ) when done properly
    Will see how it goes when I get a chance

  13. #33

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ID:	95429After much deliberating and delaying I have just purchased a scruffy Honda ca125 tank off eBay to fit
    Scruffy cos it was cheap but it looks solid and clean inside it’s a bit smaller than I wanted @ 2.2 UK / 2.6 us gallons , but as I’m gonna get rid of the air filter arrangement soon . I will be able to get some more capacity by getting rid of most of the tunnel which looks like it should give me the best part of a gallons capacity . Which would be plenty for me . Think it should be a nicely shaped little tank
    Last edited by dowood1; 07-04-2019 at 3:45 PM.

  14. #34

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    Thinking aloud here ! Re hard tailing it .
    I think that as the s/arm tubes line up with the frame tubes vertically I could put a brace across the frame tubes horizontally top and bottom where the curved vertical side braces are , which I’m retaining .
    Then just chop the swinging arm off and but it up against the braces and weld in place .
    Maybe using 60 by 30mm 3mm rectangular tube
    Or perhaps two 30mm tubes top and bottom with 2 tubes between them where the swinging arm buts up against them ,
    Perhaps not the tidyist arrangement but simple cheap and easy to do with out too much dismantling or work and I can get rid of all the excess s/arm gubbins / weight and fit a simple electrics box
    Any one got any thoughts on that please
    Last edited by dowood1; 07-08-2019 at 5:29 AM.

  15. #35
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    how about some pics of the frame so we can see the tubes you are talking about, and a hand drawn sketch (or CAD) of your plan. That'll help with thinkin' thoughts...

    Is it anything like this Shadow?
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    Thread: Thread of the day: My Road to 'Bob'
    http://www.chopcult.com/forum/showthread.php?t=32083
    Last edited by TriNortchopz; 07-08-2019 at 6:44 AM.

  16. #36

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    Thanks TriNortchopz will do that , but fear it was a late night “plan” to save time and money and didnt really stand up in the daylight .
    But will have a rethink on it and see if I can come up with something that works in daylight too .
    Will be happy to post some ideas then !
    Cheers for the offer tho

  17. #37

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    The idea is to be somewhere near one of these frame wise . preferably the lower of the two pics . Guess I’m gonna need to find a tube bender to get the bits to connect frame and s/ arm like that . At least I’ve found one that’s done, what I want to aim for with an xvs650 frame Click image for larger version. 

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    Last edited by dowood1; 07-08-2019 at 5:46 PM.

  18. #38

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    Already have the manifold which will need an adaptor for the carb , and the air filter which I hope to have before the end of the month .
    Its all going to be good fun Im sure

  19. #39

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    Tank turned up today with damage to it / a split in it , seller has agreed to refund all charges .
    Think it could be cool when fitted properly , repaired and those front mountings changed , but not convinced as yet . Think I would need to move the seat back a bit and the tank forwards a Bit , and a bit of paint ! . BUT Maybe too much trouble / cost with the repairs as well ? Click image for larger version. 

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    Any opinions out there
    Last edited by dowood1; 07-10-2019 at 5:47 AM.

  20. #40

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    Gonna have to scrap the tank , took the rest of the filler off and there’s too much damage for it to be viable

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